Upper limb

Question 1

What nerves are innervated by C5-C6?

Answer 1

Suprascapular
Axillary
Musculocutaneous

Question 2

What nerve is lost by a C5-C7 lesion?

Answer 2

Long thoracic

Question 3

What muscles hold the scapula from winging?

Answer 3

Serratus anterior

Latissimus dorsi

Question 4

What is the innervation of Latissimus doors?

Answer 4

Thoracodorsal C7 C8

Question 5

What is the innervation of the radial nerve?

Answer 5

C5- T1

Question 6

What are the signs seen with median nerve damage?

Answer 6

loss of pronation
hand benediction
ape hand

Question 7

What are the signs of ulnar nerve damage?

Answer 7

claw hand

loss of interossei

Question 8

What forms the floor and roof of the carpal tunnel ?

Answer 8

roof- flexor retinaculum

floor- lunate carpal bone

Question 9

What are the signs of carpal tunnel syndrome?

Answer 9

compression of median nerve & digital flexor tendons

• atrophy of thenar muscles
• sensory loss &; tingling of 3 1/2 digits
• dull night pain

Question 10

What are the composition of the sciatic nerve?

Answer 10

tibial L4-S3

common fibular L4-S3

Question 11

What nerves are tested with plantar flexion?

Answer 11

S1-S2

Question 12

What nerves are tested with dorsi flexion?

Answer 12

L4-L5

Question 13

What does L4-S1 innervate?

Answer 13

Gluteus medius
Gluteus minimus
Eversion musles

Question 14

What does L5-S2 innervate?

Answer 14

Gluteus maximus

Question 15

Loss of superior gluteal nerve produces?

Answer 15

Trendelenburg sign- leaning to the other side of the lesion

Question 16

Foot drop is a defect in

Answer 16

L4- S2

Question 17

Femoral nerve

Answer 17

L2-L4

Question 18

Obtruator nerve

Answer 18

L2-L4

Question 19

Inferior gluteal nerve

Answer 19

L5- S2

Question 20

Superior gluteal nerve

Answer 20

L4-S1

Question 21

Sciatic nerve

Answer 21

tibial -L4-S3

common fibular L4-S2

Question 22

Deep fibular nerve

Answer 22

L4-S2

Question 23

Superficial fibular nerve

Answer 23

L4-S1

Question 24

What are the branches off the deep femoral artery ?

Answer 24

lateral and medial circumflex

perforation arteries

Question 25

Pharyngeal arch 1 gives rise to ?

Answer 25

Mandibular nerve CN 5 Muscles of mastication Malleus & incus Mandible & Maxilla

Question 26

Pharyngeal arch 2 gives rise to ?

Answer 26

``` Facial nerve CN 7 Facial expression muscles(smiles) Stapedius Stylohyoid stapes , styloid process, lesser & upper hyoid bone ```

Question 27

Pharyngeal arch 3 gives rise to ?

Answer 27

Glossopharyngeal n. CN 9 stylopharyngeus greater &lower hyoid bone Common and internal carotid

Question 28

Pharyngeal arch 4 gives rise to ?

Answer 28

``` Superior laryngeal nerve CN X cricothyroid soft palate pharyngeal muscles thyroid cartilage right subclavian & arch of aorta ```

Question 29

Pharyngeal arch 6 gives rise to ?

Answer 29

``` recurrent laryngeal n. CNX laryngeal muscles laryngeal cartilages right and left pulmonary arteries ductus arteriosus ```

Question 30

What does the first cleft form?

Answer 30

external auditory canal

Question 31

What does the pharyngeal pouches give rise to?

Answer 31

1 & 2 - epithelial lining 3 - inferior parathyroid & Thymus 4- superior parathyroid

Question 32

What is the sensory innervation for the anterior 2/3 of tongue ?

Answer 32

general : CN 5 | taste: CN 7

Question 33

What is the sensory for the posterior 1/3 of tongue ?

Answer 33

general & taste CN 9

Question 34

What is the motor function of the tongue ?

Answer 34

CN 12

Question 35

What is the defect in cleft lip?

Answer 35

maxillary prominence

Question 36

What is the defect in cleft palate ?

Answer 36

palatine shelves and or primary palate

Question 37

What nerves are in the cavernous sinus

Answer 37

CN III , IV, VI, V1, V2

Question 38

What is the defect in dandy walker malformation ?

Answer 38

hypoplasia of the cerebellar vermis

Question 39

What is the defect in Arnold Chiari ?

Answer 39

herniation of the cerebellar vermis

Question 40

How does sympathetic innervation get to the head ?

Answer 40

Travels along side the arteries

Question 41

What mediates anterograde transport

Answer 41

kinesin

Question 42

What mediates retrograde transport?

Answer 42

dyenin